Class DATE

src/data-types.js:425–478

* Date column with timezone, default is UTC

 * Date column with timezone, default is UTC
 */
class DATE extends ABSTRACT {
  /**
   * @param {string|number} [length] precision to allow storing milliseconds
   */
  constructor(length) {
    super();
    const options = typeof length === 'object' && length || { length };
    this.options = options;
    this._length = options.length || '';
  }
  toSql() {
    return 'DATETIME';
  }
  validate(value) {
    if (!Validator.isDate(String(value))) {
      throw new sequelizeErrors.ValidationError(util.format('%j is not a valid date', value));
    }
    return true;
  }
  _sanitize(value, options) {
    if ((!options || options && !options.raw) && !(value instanceof Date) && !!value) {
      return new Date(value);
    }
    return value;
  }
  _isChanged(value, originalValue) {
    if (originalValue && !!value &&
      (value === originalValue ||
        value instanceof Date && originalValue instanceof Date && value.getTime() === originalValue.getTime())) {
      return false;
    }
    // not changed when set to same empty value
    if (!originalValue && !value && originalValue === value) {
      return false;
    }
    return true;
  }
  _applyTimezone(date, options) {
    if (options.timezone) {
      if (momentTz.tz.zone(options.timezone)) {
        return momentTz(date).tz(options.timezone);
      }
      return date = moment(date).utcOffset(options.timezone);
    }
    return momentTz(date);
  }
  _stringify(date, options) {
    if (!moment.isMoment(date)) {
      date = this._applyTimezone(date, options);
    }
    // Z here means current timezone, _not_ UTC
    return date.format('YYYY-MM-DD HH:mm:ss.SSS Z');
  }
}

/**
 * A date only column (no timestamp)